Transformer failure rate dips in Bengaluru, but old units continue to fail

The transformer failure rate in Bescom's jurisdiction has fallen from 8.07% in 2018-19 to 6.77% in 2025-26. However, the number of failed transformers has increased, with old units continuing to account for a significant share of the failures. Officials noted that the second blast near Amazon India at Bagalur Cross on October 7 was caused by a rat entering the transformer’s Ring Main Unit (RMU).